The weather of Coonoor is always pleasant and delightful. It experiences a wonderful climate all through the year. The place witnesses three seasons, including winter, summer and monsoon. Summer months (March to June) are warm in Coonoor and the temperature goes up to 36°C yet the atmosphere is pleasant. Monsoon months (July to September) receive the average rainfall but make the ambiance humid. Winter months are cool and temperature remains between 10°C and 20°C and this is the ideal time for Coonoor vacation.